Sahu, Vaishali, and V. Gayathri. “Strength Studies of Dadri Fly Ash Modified With Lime Sludge – A Composite Material”. International Journal of Engineering and Technology Innovation 4, no. 3 (July 1, 2014): 161-169. Accessed April 19, 2021. https://ojs.imeti.org/index.php/IJETI/article/view/140.